Improvement in artificial fuel



' description of the same. Y

time (title BENJAMIN r. PENNY, or noonns'rnn, NEW YORK, AssieNoR TO THADDE B. cUn'rIs, on NEW YORK, cITY.

LettersPatent No. 111,565, dated February 7, 1871.

IMPROVEMENT m ARTlFrClAL FUEL.

The Schedule xeferred to in these Letters Patent and making part of the same.

To allwhom it may concern.-

Be it known that l, BENJAMIN l PENNY, of Rochester, in the county of Monroe and State of New York,.have invented -an Improvement in ificial Fuel; and the following is declared to be a correct Diflicultylnis been experienced in burning coal-dust, and many efforts have been made to mix clay and bituminous substances to form blocks or lumps to be introduced into stoves or furnaces and burnt; but the costlincss of preparation, and the ditliculties connected with burning the same, have rendered such efforts unsuccessful or valueless.

The object of inyinvention is to prepare thc'coaldust at the place where it is to be used, and then burn the dust in almost the same manner as'lump-eoal, the

preparation of the dust being inexpensive.

I take anthracite coal-(li1st,1t-ho.i1tseventydive per cent, and bituminous coal-dust, about twenty five-per cent, and mix them together, and add sutlicicnt water to make the particles adhere slightly together.

In this state they are thrown into the furnace, care being taken not to charge the furnace too much at one time so as to deaden the fire.

I have discovered that the fuel mixed in the aforesaid manner cokes under the operation of heat as moisture is driven off, the bituminous dust formin bond {to hold the particles of anthracite; and ti will hey-but little smoke, because the anthracitm iutens'rlies the-fire and burns up the carbonace gases, and the vapors of the water are beneficial rat than detrimental. I

I. remark that this fuel is not adapted'to ns first lighting a fire; it is to be burnt after there body of incandescent fuel upon which the shovel of such artificial fuel are thrown.

This fuel is most available where the blast fro blower is employed. A

The article herein referred to as coal-dust is tc understood as being particles of coal of a smaller; than the merchantahle article known as nut coal.

I claim as my inyentionf The mode herein tpedificdwt mixing and burl anthracite anil liituminous coal-(lust, as specified.

Signed by me this 9th day of January, 1871.

' 'B. F. PEN Ni.

4 \Vitnesses: A CHAS. H. SMITH, Geo. 'l. PINGKNEY. v 

